KR101179031B1 - Insole with shock absorption structure - Google Patents

Abstract

PURPOSE: A shoe insole with a shock absorption structure is provided to maintain enough shock-absorbing performance. CONSTITUTION: A shoe insole with a shock absorption structure comprises an impact absorbing pad(106) and a cushion protrusion(108). The outer circumference of the impact absorbing pad is formed into an adhesion reinforced surface. The adhesion reinforced surface comprises a thin incline. In the bottom surface of the impact absorbing pad, a plurality of cushion protrusions with an air chamber for absorbing an impact are formed. The cushion protrusion comprises a base unit, an elastic member, a shock delivering member, and a shock-absorbing member.

Description

Sole with cushioning structure {INSOLE WITH SHOCK ABSORPTION STRUCTURE}

The present invention relates to a shoe sole having a shock absorbing structure, and more particularly, a cushion pad material having a plurality of cushioning protrusions having a four-stage structure is formed on the bottom surface of the finishing pad material of the shoe solely or entirely to provide a body to the body during walking or driving. The present invention relates to a shoe sole having a buffer structure for absorbing and mitigating a transmitted shock.

In general, a shoe sole (particularly, a shoe insole) is mainly put inside a shoe and has a purpose to provide comfort even when walking or driving for a long time. In recent years, in addition to merely providing comfort, a body when walking or driving The shock absorbing shock transmitted to the joints of the tendency to reinforce the cushioning function to prevent the force is applied to the joints.

1 is a view showing a buffer structure of a shoe sole according to a conventional example.

In the cushioning structure of the shoe sole according to the conventional example shown in the drawing to open a portion of the position corresponding to the heel portion in the shoe sole 10 to alleviate the impact applied to the heel during walking, cushioning member installation (12), the buffer member mounting hole 12 is formed to a predetermined thickness to absorb a shock absorbing member 14, for example, is bonded by an adhesive, the bottom of the buffer member 14, the buffer portion ( 16) is formed.

The shock absorbing member 14, in which the shock absorbing portion 16 is formed, is usually formed by foaming a synthetic resin including polyurethane. In the shock absorbing structure of such a shoe sole, the shock absorbing portion 16 is applied when walking. Although it has a restoring force enough to absorb a shock, when used for a long time, as the thickness of the shock absorbing portion 16 is reduced, the restoring force is lowered, and the shock absorbing effect is also reduced. Since the shock absorbing member 14 is joined to the 12 by simple adhesion without a separate fixing structure, it is difficult to exclude the possibility of detachment. If the shock absorbing member 14 is detached, the shock absorbing member 14 is The flow decreases the buffer function.

2 is a view showing a buffer structure of a shoe sole according to another conventional example.

In the shock absorbing structure of the sole according to another example shown, a flow structure of air is applied to the sole to absorb or alleviate the shock transmitted to the body during walking or driving.

That is, the air inlet / outlet opening 32 is installed in the air opening / closing coupling groove formed at one side of the sole (that is, the sole of the shoe) 30, and the inlet / exhaust opening 32 is provided on the upper surface of the sole 30. An air flow path 34 through which intake air flows is formed.

Therefore, in the above structure, while the outside air is introduced from the intake / exhaust opening and closing 32 while walking, the air flow path 34 flows through the intake / exhaust opening and closing 32, and the load is repeated. It will alleviate the impact of walking and significantly reduce the fatigue you feel while walking.

However, in the structure shown in FIG. 2, the air flow path 34 is formed on the upper surface of the sole 30, and the intake / exhaust opening and closing 32 is additionally installed. In addition to the increase of the cost is inevitable, and if the intake / exhaust 32 is unable to perform the normal intake / exhaust operation, it is not possible to mitigate the impact during walking.

In another example, it is assumed that an elastic body (typically, a coil spring) is applied to the heel portion of a shoe to absorb or alleviate an impact during walking or driving. FIG. 3 is a view illustrating a shoe sole according to another conventional example. It is a figure for demonstrating an impact absorption structure.

That is, in the configuration shown in Figure 3, the front heel window (40a) and the heel window (40b) forming a shoe sole is bonded in a partially overlapping state at the connecting portion 42, walking in the center of the heel window (40b) Alternatively, the coil spring 46 is formed to be embedded to mitigate the impact during driving.

However, in the above-mentioned shoe soles, since the coil spring 46 is applied to alleviate the impact, when the elastic fatigue limit of the coil spring 46 is reached, the shock absorbing effect is lowered, thereby preventing the proper function. If the coil spring 46 is made of metal in consideration of the durability, the noise is likely to be generated during the elastic action, and the overall structure becomes complicated, resulting in an increase in manufacturing cost.

4 is a view showing a buffer structure of a shoe sole according to another conventional example.

Referring to the drawings, the shoe sole 60 is injection-molded with a thermoplastic resin which is very flexible or does not penetrate the air, the air hole 64 is open at the top of the lower sheet portion 62 of the plate shape A plurality of shock absorbing projections 66 having vertically installed and the upper sheet portion 70 is formed with a plurality of vent holes 68 formed on the upper surface thereof (see Fig. 5).

When walking in the state of wearing a shoe employing such a shoe sole of such a configuration, the upper buffer portion 70 is sequentially compressed by the weight load at the time of walking the compression buffer 66 of the lower side, the buffer projection at that time Although the air hole 64 of the 66 is blocked by the upper seat portion 70 in which the vent hole 68 is formed, the air in the air hole 64 is compressed even though the buffer protrusion 66 is compressed. While buffering, the shock is absorbed by the elastic action of the material itself as illustrated in FIG. 5.

However, referring to FIG. 5, since all the air is discharged during walking through the vent hole 68 formed in the upper seat part 70 disposed on the air hole 64, the air hole 64 is removed from the air hole 64. Will not work properly.

That is, when the foot hits the ground during walking, the ventilation hole 68 is blocked by the weight load through the sole and is cushioned by the air in the air hole 64 while the foot is lifted when the foot is lifted from the ground. The air hole 64 should be filled with sufficient air through 68), but the pumping amount of air is small due to the structure of the buffer protrusion 66, so that a sufficient shock mitigation function cannot be expected.

In addition, when the vent hole 68 formed in the upper sheet portion 70 is blocked by a foreign matter, the exhaust / intake of air through the air hole 64 becomes impossible, and the buffering effect may be further reduced. There will be only one.

Moreover, in the case of the shoe midsole to which the conventional shock absorbing structure is applied, it is difficult to quickly respond to the design or shape of the shoe because it is usually deformed according to the shape or design of the shoe.

Accordingly, the present invention has been made in view of the above-described prior art, and is formed of silicone or TPR (Thermoplastic Rubber) having excellent elasticity, resilience, moldability, and durability, and the bottom surface of the finishing pad material of the sole (particularly, shoe insole) In addition to being able to be applied in the form necessary in part or in whole, while maintaining good adhesion to the finishing pad material, sufficient cushioning performance is always maintained by the air filled in the plurality of cushioning protrusions formed on the bottom thereof. It is an object of the present invention to provide a shoe sole having a buffer structure.

In order to achieve the above object, according to a preferred embodiment of the present invention, in the shoe sole comprising a closing pad material and a cushioning pad material adhered to the closing pad material, the buffer pad material is formed around the outer edge of the adhesive steel screen The adhesive steel screen includes an inclined surface that gradually becomes thinner toward the end of the buffer pad material, and a plurality of air chambers formed therein for absorbing shock on the bottom of the buffer pad material inside the adhesive steel screen. Provided is a shoe sole having a cushioning structure formed with a cushioning projection.

According to the present invention, the buffer pad material is formed by molding a synthetic resin including silicon and TPR (Thermoplastic Rubber), and the cushion protrusions are formed to be inclined inwardly at a predetermined angle at a proximal end and a proximal end thereof, respectively, to have a buffer elasticity. A shock absorbing elastic portion that acts, a shock transmitting portion formed at a constant vertical height at the buffer elastic portion with a smaller diameter than the proximal portion, and a hemispherical shock absorption formed on the impact transmitting portion to receive a shock with a minimum area. It will consist of a sphere.

Preferably, the cushion pad member having the cushion protrusion and the adhesive steel screen is partially or wholly adhered to the finishing pad member, and the buffer pad member is not bonded when the buffer pad member is partially bonded to the finishing pad member. Part of the finishing pad material is bonded to the secondary buffer pad member formed of a material selected from a soft polyurethane foam, latex, sponge, EVA (Ethyene Vinyl Acetate) foam to reinforce the overall cushioning function and to compensate for the height difference.

In addition, a shock absorbing protrusion is formed at the rear portion of the buffer pad material to alleviate the shock transmitted to the rear gingival bar. A shock absorbing elastic portion for performing a, and a shock transmitting portion formed at a constant vertical height in the buffer elastic portion with a smaller diameter than the proximal end.

In the shoe sole having a shock absorbing structure according to the present invention described above in the form of a shoe because it can be applied to the manufacture of shoes by adhering a cushion pad material formed of a cushioning projection of a dual impact relief function partially or entirely on the bottom surface of the finishing pad material It is easy to manufacture a shoe sole having a buffer structure corresponding to the design.

In addition, since the outer periphery of the buffer pad material is defined as an adhesive steel screen, the adhesion to the finishing pad material is enhanced, which is more advantageous.

Furthermore, the plurality of cushioning protrusions formed on the cushion pad material perform a dual shock mitigation function in conjunction with air in the air chamber defined therein, which is more improved than the shock absorbing structure which depends on the air intake / exhaust action. The shock alleviating effect can be provided for a long time.

In addition, even when the buffer pad member is partially adhered to the front or rear portion of the bottom surface of the finishing pad member, the material of the closing pad member to which the buffer pad member is not adhered is capable of shock absorption (buffer action) by itself. Auxiliary buffer member pad member formed of a material selected from polyurethane foam, latex, sponge, EVA (Ethyene Vinyl Acetate) foam is bonded, thereby improving the overall cushioning function while providing a balance by compensating the overall height difference.

1 is a view showing a buffer structure of a shoe sole according to a conventional example.
2 is a view showing a buffer structure of a shoe sole according to another conventional example.
3 is a view showing a buffer structure of another shoe sole in another conventional example.
4 is a view showing a buffer structure of another shoe sole in another conventional example.
5 is a view for explaining the buffering effect of the sole shown in FIG.
Figure 6 is a view for explaining an application example of a shoe sole having a buffer structure of the present invention.
Figure 7 is a cross-sectional view taken along line AA 'of Figure 6 for explaining the structure of the cushion protrusion in the shoe sole having a buffer structure in accordance with a preferred embodiment of the present invention.
8 is a view for explaining another application example of a shoe sole having a buffer structure of the present invention.
9 is a view for explaining another application example of a shoe sole having a buffer structure of the present invention.
10 is a cross-sectional view taken along the line BB ′ of FIG. 9.
11 and 12 are a perspective view and a cross-sectional view showing an example of a structure for improving breathability in the shoe sole having a buffer structure of the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

6 is a view for explaining an application example of a shoe sole having a buffer structure of the present invention.

Referring to the drawings, a shoe sole having a buffer structure according to the present invention, for example, leather or synthetic pads, non-woven fabric or fiber material (particularly, the finishing pad material of the shoe insole) part that needs to alleviate the impact ( In Fig. 6, for example, the bottom surface of the front portion for absorbing the shock transmitted to the toe of the toe is formed into a predetermined shape by forming a material (for example, silicon or TPR (Thermoplastic Rubber), etc.) having excellent elasticity, resilience, formability and durability. It is made of a structure in which the buffer pad 106 is formed.

According to the present invention, when the finishing pad material 100 is made of leather or synthetic resin, the bottom surface is provided with a fine or irregular shape of reticular or irregular shape in a well-known manner so that the shock absorption is performed by itself. The ground becomes more advantageous.

In addition, for the buffer pad material 106, it is more advantageous to add a tensile enhancer in the forming step to enhance the tensile strength or to add a deodorant to remove the odor.

Preferably, according to the present invention, when the buffer pad material 104 is partially adhered to the bottom surface of the closing pad material 100, the bottom surface of the closing pad material 100 to which the buffer pad material 106 is not adhered. The auxiliary buffer pad member 100A is adhered to the buffer pad member 106 to improve the overall shock absorbing function while compensating for the height imbalance.

Here, the buffer pad adhesive opening 100B is formed at the front portion of the auxiliary buffer pad member 100A to directly bond the buffer pad member 106 to the bottom surface of the finishing pad member 100.

In addition, according to the present invention, the auxiliary buffer pad member 100A may be a material selected from a material capable of absorbing shock (buffering) by itself (eg, a soft polyurethane foam, latex, sponge, EVA (Ethyene Vinyl Acetate) foam). Is formed.

Preferably, the auxiliary buffer pad member (100A) is to be bonded to the front surface of the bottom surface of the finishing pad member 100 in a state integrally molded on the bottom surface of the finishing pad member (100). When applied as a structure, it is very good in terms of workability.

The buffer pad material 106 according to the present invention is defined as an adhesive steel screen 106a for maintaining the outer circumference of the pad pad material 100 by strengthening the adhesive force to the finishing pad material 100, the adhesive steel screen 106a ) Is formed in a tapered shape to be gradually inclined toward the outer end of the buffer pad material 106, the adhesiveness to the finishing pad material 100, in particular a fine concavo-convex shape is formed on the bottom surface of the finishing pad material 100 It is assumed in order that adhesiveness to a case may become good.

In addition, a plurality of cushioning projections 108 are formed on the bottom of the buffer pad member 106 to doublely absorb and mitigate the shock transmitted to the body while wearing a shoe to which a corresponding sole is applied and walking.

Referring to FIG. 7, the adhesive steel screen 106a formed on the outer periphery of the buffer pad material 106 is formed to be inclined gradually thinner toward the outer end from the bottom thereof, so that the adhesion to the finish pad material 100 is good. The buffer pad cover 104 is formed by, for example, a synthetic resin thin film on the upper surface (ie, upper surface in FIG. 7) of the buffer pad material 106.

In addition, a plurality of cushioning protrusions 108 are formed inside the adhesive steel screen 106a at the bottom of the cushioning pad material 106, and the inside of the cushioning protrusion 108 is a corresponding cushioning pad material 106. ) Is bonded to the finishing pad material 100 to function as an air chamber 110 in which air is charged.

Here, when the buffer pad member 106 is bonded to the finishing pad member 100 so that the air chamber 110 is formed, the area of the air chamber 110 is not bonded to the finishing pad member 110. The function of the adhesive steel screen 106a assumed in the present invention becomes more advantageous for reinforcing adhesion with the finishing pad material 110.

In addition, according to the present invention, the cushion protrusion 108 has a four-stage structural layer, each cushion protrusion 108 is inward at a predetermined angle from the base end portion 108a and the base end portion 108a of a constant vertical height. A buffer elastic portion 108b formed to be inclined to perform a buffering elastic action, an impact transmitting portion 108c formed at a constant vertical height at the buffer elastic portion 108b with a smaller diameter than the base end portion 108a, and the impact thereof It is formed on the delivery unit (108c) is made of a hemispherical shock absorbing hole (108d) for the primary to alleviate the impact by transmitting a shock to the body to a minimum area during walking.

That is, the shock absorbing pad member 106 is adhered to the bottom surface of the finishing pad member 100, and the lower side (that is, the shock absorber 108d) has shoe soles or shoe insoles (not shown in the figures). When folded and applied to the manufacture of shoes, the impact transmitted through the shoe midsole or shoe insole during walking is transmitted to at least the area of the shock absorbing port 108d to primarily mitigate the impact.

The shock force primarily relaxed at the shock absorbing port 108d is transmitted to the shock transmitting part 108c and the shock transmitting part 108c is pushed backwards (upward in the figure), thereby reducing the impact of the shock absorbing elastic part 108b. The elastic action is caused, in which case the air in the air chamber 110 defined inside the cushion protrusion 108 supports and absorbs the elastic action corresponding to the shock transmitted to the buffer elastic part 108b. Subsequently, a buffering effect is achieved.

Therefore, in the present invention, a shock absorbing effect can be achieved by absorbing the shocks in the cushioning protrusions 108 in a double manner, and a better shock absorbing effect can be achieved. Furthermore, an air chamber defined inside the cushioning protrusions 108 ( Since the shock mitigation effect by the air in 110 is maintained at the same or similar degree over a long time, the shock transmitted to the body can be suppressed as much as possible even when walking for a long time.

In addition, since the auxiliary buffer pad member 100A is bonded to a portion of the bottom surface of the closing pad member 100 to which the buffer pad member 106 is not bonded, a cushioning function may be provided as a whole.

8 and 9 are views for explaining an application example of the shoe sole having a buffer structure of the present invention, to illustrate that the buffer pad member 106 according to the present invention has improved adaptability at the time of manufacturing shoes. Reference is made.

That is, referring to FIG. 8, the buffer pad member 106A is adhered to the rear portion of the finishing pad member 100 (that is, the back grommets), and the configuration of the buffer pad member 106A is illustrated in FIGS. In the same manner as the buffer pad member 106 shown in Fig. 7, the outer periphery is defined as an adhesive steel screen 106a, and is formed as an inclined surface that gradually becomes thinner toward the end. A plurality of cushioning projections 108 are formed.

In addition, the portion of the bottom of the finishing pad material 100 is not bonded to the buffer pad material (106A) to the secondary buffer pad member (similar to that shown in FIG. 100 is provided, the auxiliary buffer pad member 100 is also a material capable of shock absorbing (buffering) itself as described in Figure 6 (for example, soft polyurethane foam, latex, sponge, EVA (Ethyene) Vinyl Acetate).

In addition, the auxiliary buffer pad member 100 is also provided with a buffer pad adhesive opening 100C for adhering the buffer pad material 106 to the bottom surface of the finishing pad member 100.

Therefore, even in the sole of the structure shown in FIG. 8, the shock-absorbing action by the cushion protrusion 108 and the buffering action by the auxiliary buffer pad member 100A can be achieved in the same manner as in FIGS. have.

In addition, referring to Figure 9 bar buffer pad 130 is bonded to the bottom surface of the finishing pad material 100 as a whole, the configuration of the buffer pad material 130, the buffer pad shown in Figures 6 and 7 Similarly to the ash 106, an adhesive steel screen and a plurality of cushioning protrusions are provided to achieve a shock mitigation action by the cushioning protrusion.

In addition, in FIG. 9, a second shock absorbing protrusion 132 is further formed in the shape of a polygon in the rear portion of the buffer pad member 130 to more effectively absorb the shock transmitted to the back of the foot.

That is, referring to FIG. 10, a plurality of cushion protrusions 108 having the same shape as shown in FIG. 7 are formed on the bottom surface of the buffer pad member 130, and the shock absorbing protrusion 132 is the cushion. The protrusion 108 is formed in the same shape except for the hemispherical shock absorbing hole 108d.

Therefore, in the configuration shown in Figure 9 because the cushioning pad 108 and the shock absorbing protrusion 132 is formed on the entire bottom surface of the finishing pad material 100 is bonded and walking and running The shock transmitted to the body at the time can be alleviated.

11 and 12 are a perspective view and a cross-sectional view showing an example of a structure for improving breathability in a shoe sole having a buffer structure of the present invention, the buffer pad material 106; In the bonded state, a predetermined number of vent holes 150a to 150n are formed.

Therefore, when the sole according to the present invention is formed with a plurality of vent holes (150a ~ 150n) and the buffer pad material 106; Will be lost.

On the other hand, the present invention is not limited to the above examples, and various changes and modifications can be made without departing from the technical gist and gist of the invention.

The above description relates to a configuration in which the shock absorbing pad material of the present invention is provided on the bottom surface of the finishing pad material of the shoe insole, but the shock absorbing pad material of the present invention may be applied in a modified form to the shoe sole.

In addition, the shape and dimensions of the buffer pads (106,130) is not only changeable according to the dimensions of the finishing pad material 100 that is applied to the actual manufacture of shoes, it is formed on the bottom surface of the buffer pads (106,130) Dimensions of the cushion protrusion 108 and the impact absorbing protrusion 132 can also be appropriately changed.

100: finishing pad material, 100A: auxiliary buffer pad member,
106: buffer pad material, 106a: adhesive steel screen,
108: cushioning projection, 132: shock absorbing projection.

Claims (4)

A shoe sole comprising a closing pad material and a buffer pad material adhered to the closing pad material,
The buffer pad material is formed of a material selected from silicon and TPR (Thermoplastic Rubber), and the outer circumference thereof is formed to form an adhesive steel screen.
The adhesive steel screen includes an inclined surface gradually thinner toward the end of the buffer pad material,
A plurality of cushioning protrusions formed therein are formed in the bottom of the buffer pad material on the inner side of the adhesive steel screen to form an air chamber for absorbing shock.
The cushioning projections are each formed at an inclined inward angle at a predetermined angle at a proximal end with a predetermined vertical height, and a shock-elastic portion formed at a constant height in the cushioning elastic portion with a smaller diameter than the proximal portion to perform a buffering elasticity. And a hemispherical shock absorbing port formed on the impact transmitting part to receive a shock with a minimum area. The shoe sole of claim 1, wherein the cushioning pad member having the cushion protrusion and the adhesive steel screen is partially or wholly adhered to the finishing pad member. The method of claim 2, wherein when the buffer pad material is partially bonded to the bottom of the closing pad material, the auxiliary buffer pad member is bonded to the bottom of the closing pad material is not bonded to the buffer pad material, the auxiliary buffer pad member is soft A shoe sole having a cushioning function, wherein a buffer pad adhesive opening is formed such that the buffer pad material is directly bonded to the finishing pad material while being formed of a material selected from polyurethane foam, latex, sponge, and EVA (Ethyene Vinyl Acetate) foam. The shock absorbing pad of claim 2, wherein a shock absorbing protrusion is formed at a rear portion of the buffer pad material to mitigate an impact transmitted to the hind gingiva,
The shock absorbing projections are each formed at an inclined inward angle at a predetermined angle at a proximal end with a predetermined vertical height, and a shock-elastic portion for performing a shock-elastic action, an impact formed at a constant vertical height at the shock-elastic portion with a smaller diameter than the proximal end. Sole with a buffer function, characterized in that consisting of a transmission.

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